天文学家

Meanwhile, astronomers in California were building the largest telescope in the history of the world - a new telescope on top of Mount Wilson, near Pasadena, with a mirror 100 inches (2.5 meters) across. In 1923, Edwin Hubble used this new telescope to prove that some of the nebulae, including the Sombrero, are actually other galaxies similar to our own Milky Way.

期间，天文学家在加利福尼亚建造了当时世界上最大的望远镜，该望远镜在 Pasadena 附近的威尔逊山顶，拥有2.5米的镜面。1923年， Edwin Hubble 用这个新的望远镜证明部分星云包括 Sombrero 实际上是和我们的银河系一样是星系。

He was an astronomer, historian, geographer, philosopher, poet, theater critic and mathematicianHe was also the director of the great library of Alexandria, where one day he read in a papyrus book that in the southern frontier outpost of Syeneat noon on June 21 vertical sticks cast no shadow.

2，他是个天文学家，历史学家，地理学家，哲学家，诗人，戏剧评论家，和数学家。…他也是亚历山卓大图书馆的馆长。

Previously, the smallest known black hole would weigh about 6.3 times as much as the Sun, and some black holes tip the scales at millions or even billions of times that of our Sun.

更加准确的办法是通过黑洞的外观大小和其周围圆盘气体流所释放的 X 射线的相关性，天文学家能更加准确给黑洞称重。

He praised the bravery of the astronomers who were helped out of the windows of the trolleybus by firemen.

他赞扬了这些勇敢的曾被消防员从电车车窗救出来的天文学家。

The unaccounted-for mathematical irregularities in the orbits of the outer planets have prompted astronomers to speculate upon the existence of a further, undiscovered planet.

对下落不明的数学中的不正常现象的轨道，促使外行星天文学家推测取决于是否存在进一步，未被发现的星球。

The undevout astronomer must be mad.

天文学家如果不虔诚肯定是疯了。

An astronomer can examinea galaxy and from its brightness make a guess as to how many stars and how much dusty gas it contains. Yet when we track the movements of galaxies in a self-contained cluster, they move as if galaxy were far heavier than it appear. It's like watching go-carts move as unstoppably as trucks.

尽管天文学家能够对某个星系进行观察并根据其亮度推测它所含恒星的数量和尘埃气体的多少，但是当我们把众多星系作为一个独立存在的整体来观察其运动时就会发现，每个星系运动起来似乎比我们所看到的要重得多，这就像我们看一辆儿童手推车以卡车般巨大、难以阻挡的惯性向前奔驰一样。

Astronomers selected an uncluttered area of the sky in the constellation Ursa Major and pointed the Hubble Space Telescope at a single spot for 10 days.

天文学家选了一个在Ursa Major座方向看起来并不拥挤的天空，将哈伯望远镜对准之拍摄了十天。

One of the new telescope's first images shows a favorite of astronomers, the nearby galaxy Messier 81, located in the constellation Ursa Major, which includes the Big Dipper.

新型望远镜发回的首批图象中有一张显示了天文学家的最爱---位于大熊星座（大熊星座包括了北斗七星）的邻近银河系Messier 81。

Astronomers from the National Astronomical Observatory of Japan and Osaka Kyoiku University in Japan , have detected the element thorium in a red giant star called COS82, which lies in the Ursa Minor dwarf galaxy .

天文学家来自日本国家天文台和大阪大学生涯，在日本，已发现元素钍一红巨星称为cos82，其中的关键在URSA患者小矮星系。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。